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It's impressive that these expressions are able to stay so rational even when they're having operations performed on them.
Jack and Jill went up the hill to fetch a pail of water. But what happened when they got up there? They’ve been gone an awfully long time…
Find the Absolute Value 276 Views
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Description:
ACT Math Pre-Algebra Drill 3, Problem 3. Find the absolute value.
Transcript
- 00:03
This question should put a little shmoop in your step...
- 00:06
What does the absolute value of negative 6.23 equal?
- 00:11
And here are the potential answers...
- 00:15
Ahh... translations... learning to speak...math.
- 00:21
So... let's pick this one apart.
Full Transcript
- 00:22
These bar thingies are absolute value signs.
- 00:26
And we know this is a negative sign.
- 00:28
This here is a decimal -- often pronounced "point." In... "American," anyway
- 00:36
So we read the problem as "the absolute value of negative six point two three."
- 00:42
And as in all absolute value problems, it is only measuring how far the point is from the origin.
- 00:47
This thing. Number line.
- 00:50
It's always a positive number, so in this case, its 6.23 units
- 00:54
to the right from 0 on the Number Line...
- 00:56
...and the answer is E.
- 00:58
As in, "Eh."
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It's impressive that these expressions are able to stay so rational even when they're having operations performed on them.
Jack and Jill went up the hill to fetch a pail of water. But what happened when they got up there? They’ve been gone an awfully long time…